I have no clue but good luck
Answer:
Refrigerant leak detection methods include, but are not limited to: soap bubble method; fluorescent dye method; or. electronic leak detection method.
Explanation:
The region of the upper atmosphere extending upward from the tropopause to about 30 miles (50 km) above the earth, characterized by little vertical change in temperature.
Answer:
<u>Through trade with India and China</u>
Explanation:
After the Crusades trade links and connections between East and the West were strengthened. After the famous journey of medieval traveler Marco Polo to China Europeans became aware of the richness of that regions and the goods that could be imported.
When the famous <em>Silk road </em>was created the trade links were even more firm. This period lasted until the Ottomans conquered Byzantine Empire.
Hisashige Tanaka's robots could be able to serve tea, A.